VLT primary mirrors: mirror production and measured performance

Philippe Dierickx; Daniel Enard; Roland Geyl; Jacques Paseri; Marc Cayrel; P. Beraud

doi:10.1117/12.269061

21 March 1997 VLT primary mirrors: mirror production and measured performance

Philippe Dierickx, Daniel Enard, Roland Geyl, Jacques Paseri, Marc Cayrel, P. Beraud

Proceedings Volume 2871, Optical Telescopes of Today and Tomorrow; (1997) https://doi.org/10.1117/12.269061
Event: Optical Telescopes of Today and Tomorrow, 1996, Landskrona/Hven, Sweden

Abstract

The primary mirrors of the ESO 8-m class very large telescopes are actively supported, thin Zerodur menisci, 8 - .2-m diameter. The mirror blanks are produced by SCHOTT; the optical figuring, manufacturing and assembling of interfaces and auxiliary equipment are done by REOSC. Three mirror blanks have already been delivered by SCHOTT to REOSC. In November 1995 the project met a critical and very successful milestone, with the completion and testing of the first finished VLT primary mirror at REOSC. Specifications, manufacturing and above all testing methodology are addressed, and the final results are detailed. Optical performance at telescope level is assessed as well.

Citation Download Citation

Philippe Dierickx, Daniel Enard, Roland Geyl, Jacques Paseri, Marc Cayrel, and P. Beraud "VLT primary mirrors: mirror production and measured performance", Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); https://doi.org/10.1117/12.269061

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